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Fragmentation of a Protostellar Core: The Case of CB 230

Published online by Cambridge University Press:  13 May 2016

Ralf Launhardt
Ralf Launhardt*
Affiliation:
Caltech, Astronomy Dept, MS 105–24, Pasadena, CA 91125, USA

Abstract

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The Bok globule CB230 (L1177) contains an active, low-mass star-forming core which is associated with a double NIR reflection nebula, a collimated bipolar molecular outflow, and strong mm continuum emission. The morphology of the NIR nebula suggests the presence of a deeply embedded, wide binary protostellar system. High-angular resolution observations now reveal the presence of two sub-cores, two distinct outflow centers, and an embedded accretion disk associated with the western bipolar NIR nebula. Judging from the separation and specific angular momentum, the CB230 double protostar system probably results from core fragmentation and will end up at the upper end of the pre-main sequence binary separation distribution.

Type
IV. Initial Conditions for Binary Formation and Protobinary Systems
Information
Symposium - International Astronomical Union , Volume 200: The Formation of Binary Stars , 2001 , pp. 117 - 121
Copyright
Copyright © Astronomical Society of the Pacific 2001 

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